status conference
Issue 1 May 2002
7-333555-233-143
XRATE
(cont’d.)
XRATE may be 64 when the endpoint is just dialing in, or in the event of
problems. It implies that only one B channel is being used.
AUDIO Audio rate (kbps bandwidth) of the conference and the endpoint must be the
same but not necessarily their mode. When the audio rate of the conference
and the endpoint are different the endpoint’s audio will interwork but the
endpoint’s video will be invalid. MCU may or may not send video to such an
endpoint.
Table 7-48 summarizes expected endpoint audio mode with different
configurations of transfer rate, facility bandwidth, conference mode, and
whether or not every endpoint supports the highest common audio mode (HC
audio) when the administered mode is
auto. The highest common
conference mode is dependent on the administered bandwidth. A ‘–’ in the
table indicates ‘does not apply.’
Table 7-48. Audio Mode Configurations
Admin Mode
(HC Audio)
All
Support
HC Audio
Xfer
Rate
Facility
BW Conf Mode Expected Endpoint Mode
auto (G.728) yes <=128k – G.728 G.728
auto (G.728) no <=128k 64k G.711-A-5
6k
G.711-A-56k B.711-Mu-56k
auto (G.728) no <=128k 56k G.711-A-4
8k
G.711-A-48k G.711-MU-48k
auto (G.722) – >128k 64k G.722-56k G.722-56k G.711-A-56k
G.711-Mu-56k
auto (G.722) – >128k 56k G.722-48k G.722-48k G.711-A-48k
G.711-Mu-48k
G.728 –– G.728 G.728
G.711 ––64k G.711-A-5
6k
G.711-A-56k G.711-Mu-56k
G.711 ––56k G.711-A-4
8k
G.711-A-48k G.711-Mu-48k
G.722 ––64k G.722-56k G.722-56k G.711-A-56k
G.711-mu-56k
G.722 ––56k G.722-48k G.722-48k G.711-A-48k
G.711-Mu-48k
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